Dump-car.



1.1. IRVIN.

DUMP CAR.

APPLICATION FILED JUNE 17,1913.

l ,134,859., Patiented Apr. 6, 1915.

3 SHEETS-SHEET l.

1.1.1RvlN.

DUMP CAR.

APPLICATION FILED JUNE 17.1913.

Llg, l Patented Ap1-.6,1915.

3 SHEETS-SHEET 2.

1. l. IRVIN..

DUMP CAR.

APPucATxoN man lune 17. 1913.

1,134,859. Patelli'bd Apr.'6, 1915.

3 SHEETS-SHEET a.'

- To all whom may concern JOHN J'. IB'VIN, OF BELLWQOD, PENNSYLVANIA.

DUMP-CAR.

Be it known that I, JOHN- citizen of the United States, residing at Bellwood, in the county of Blair and State 'of Pennsylvania, have invented new and useful Improvements in vDump-Cars, of'

' whichv the following is a specification.

This invention relates to dump cars' and particularly to the mechanism for unlatcliing and opening the door or doors of a dump car body, whereby -as the body is turned over or tilted relatively to the supporting truck, the door is held suspended 'and automatically swung outwardly thereby allowing the contents of the car -to be dumped without requiring manipulation or V attention on the part of the operator other than that necessitated in the operation 4of tilting the body.

A further object of the invention is to provide door opening mechanism of novel construction which will operate tofirst un latch the door relatively/' othebody and then swing the door outwardly away from the body as the latter tilts toward its dumping position.

A furtherobject of theiinvention 'is to so arrange the door operating mechanism that while `the mechanism acts to open'the door at one side of the body during .the'tilting operation, the door operating` mechanism at the opposite side rofthe body will not be disturbed or thrown into operation, the

door at the high side of the body remaining closed and latched. With the above and other objects in view, the invention consists -inthe'constructiom combination and arrangement of parts, as will hereinafter be more fully described, illustrated and claimed.

In the accompanying drawings F igure l is an end elevation of a dump car embodying the present invention, showing the carin its normal horizontal position. Fig. i). is a similar view showing the lirst step in the tilting operationrwith the latch vwithdrawn. Fig. 3 is a similar view showing the final dumping position of the car body and the full open position ofthe door. Fig. l is a detail side elevation ofthe door bar. F ig.' 5 is a bottom `view of the same. Fig. 6 is a detail perspective view of the .strip 9; Fig. 7 is a detail perspective view of the strip l0.

Referring to the drawings, A designates the carftruck, B the car body and- C the car Specicaton of Letters Patent. pplicafipll led. .Tulle 17, 1913. `Serial-N0. 774,168.

J. IRVIN, a

door. nected at 7 to the car body and -pivbtally doors, the body B-having a jointed connecl tion at lY with the truck, the axis of the joint being shown as extending in a fore and aft direction so that the body B is adapted to tilt laterally 4to one side or the otherv may be required. Two doors C are shown,-

-the same being arranged at opposite sides of the body and normally arranged in vertical planes, abutting at their inner faces against 6.5

the vertical side vedges of the front and back of the car body as shown.

Each door C is supported at its bottom edge on the car floor 2 and is provided adjacent to its front and rear bottom corners 7 the door and projecting below the bottom edge thereof where they engage keepersfl secured to the car body in position to receive the latches 3 when the door C is at 7 the lower limit of its sliding movement; The keepers Llwhich4 are hollow are fastened to angleiron sills-5 fastened to the' bottom of the car body and said keepers are formed with upwardly and outwardly y-in 3 clined flanges forming deflecting lips which act to crowd the bolts 3 inwardly as the door slides to its closed position.v

Y 6 designates a door bar, two of said door bars being employed in connection with each g door C.- Therefore, in a complete car four door bars 6 are employed, two for 'each Each door bar 6 is piiotally conconnected at v8 to the car door, the 'door bar 9 Patented apr e, 1915.' y

0.. with bolts -or latches rigidl'y fastened to 6 being normally horizontal as shown in F ig. 1 when the car body is in its normal carryingposition. A .convenient way4 of connecting the door bars 6 with the door C is shown as consisting of an yangle iron- 9 saddle member having its strip 9 fastened in fixed relation to the door C while adjacent to the member 9 is an angle iron bracket 10 arranged in spaced relation to v, the inwardly vextending lange of the facing strip 9, the parts 9 and 10 serving as@ oppositely arranged. supports for the pivot` l. 8 which connects the door bar 6 to the door C. The 'strip Y9 serves substantially as aback plate which 'is caused lto project bei yond the saddle member proper and the door is thereby enabled to be secured in contacting relationl with the projecting ends of said back plate. The door bar. 6 extendsbeyond thepivot 8 1 to form afdoor operating nose' 1.1 having an sloping working face 12 which is adapted to come into contact with the member 9 during the tilting movement of the car body as will hereinafter appear. The door bar 6 is held back by means of a supporting bar 13 the upper end of which is pivotally connected at 14 to the door bar while the lower end thereof is pivotally connected at 15 to a swinging link 16 pivotally attached at its opposite end at 17 to the truck A.' As the car body B starts to tilt, the lower end of the supporting bar 13 comes in contact with and is arrested by a. stop 18 on the truck, said stop 18 being arranged in the path of the lou/'er extremity of the supporting bar 13 the movement of which is governed by the link 16.

From the foregoing description the operation of the door mechanism will now be understood. As the body starts to tilt, the 'supporting bar 13 is in turn supported by the stop 18 and therefore operates to hold back th door 'bar 6. As the door C is supported y said door bar, the first operation of the door bar is to lift the door C relatively to the car body. This has the effect of'withdrawing the latches 3 from their keepers 4, moving the door from the position shown in Fig. 1 to the unlatchedposition shown in F ig. 2. When the parts reach theposition shown in Fig. 2, the inclined face 12 of the nose 11 of the door bar comes into contact with the door and prevents/any further pivotal movement between the door C and the door bar 6. Therefore in the further tilting movement of the car body, the door C is swung or pushed outwardly and carried from the position shown in Fig. 2 to the full open position slown in Fig. k3. The relative position of the df Jr to the car body at this stage is due entirely to gravity, but it will be seen from the construction of the door bar and its pivot, that if a boulder or othersolid matter larger than the opening thus formed was being dumped it lwould still further .raise the door on its pivot' forcing a larger opening for itself. During this tilting .movement of the body, the door at the opposite side of the body remains undisturbed for the reason that the link 16 at that side of the car swings upwardly and therefore produces no movement of the door bar at that side of the car. Upon the return of the car body to its normal horizontal y'carrying position, it will be seen that all of the elements of the door operating mechanism, and the door itself, return to their initial positions illustrated in Fig. 1, by the action of gravity alone. When .the bod is in its normal carrying position, both o the doors are closed and securely latched.

19 designates stay chains interposed between the truck A and body B at opposite sides of the center of the ca`r for the purpose of preventing any accidental tilting of the body while in transit, each of said chains being shown as comprising separable sections normally fastened together butv rendered separable from each other by means of a fastening device 20 of any suitable description.

It will also be observed that no attention whatever is required with relation to the doors and other oper/atingmechanism as all of said parts operate automatically and take care of themselves, the said parts being entitl tirely independent of the mechanism for giving the initial tilt to the car body. i

What is claimed is e In combination a truck, a dumping car trunnioned thereupon, -a pair of arm'sful-r erumed upon the opposite'v sides of said car in proximityl to each other, a saddle member pivotally mounted upon the outer end of each of said arms, a terminal nose yformed upon each of said arms disposed within said saddle member, a back plate carried by saidI saddle member projecting therebeyond, an oblong-door carried by said back vplate and projecting in contacting relation with the Vprojecting end thereof, a lockingbolt projecting from said back plate, a keeper with which said bolt is adapted to engageand means engaging the inner ends of said arms whereby to lift-the latter when said car is dumped. ,l

1n testimony whereof l aiiix my signature in presence of two witnesses.

JHN J. lRVllN. Witnesses:

WlLLIAM SHEPPARD, i JOHN Fuoss.

Copies et this patent may be' obtained for :ave cents each, by addressing the Commissioner of Patents.

Washington, DA? 

